<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<img src="a.jpg" alt="潜艇一号">
<img src="../b.jpg" title="潜艇2号" width="100%">
<img src="abc/c.jpg" width="6601" >
<img src="https://cdn.tmooc.cn/bsfile//courseImg///5f791c0985cc4a67a5c4dca6627155b0.jpg" >
</body>
</html>